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1.

001-es BibID:BIBFORM119533
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:The Effect of Methionine Sources on the Early Development of Layers / James. K. Lugata, Janos Oláh, Csaba Szabo
Dátum:2022
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
Megjelenés:ASVM2022 Global Summit on Animal Science and Veterinary Medicine / Arun K. Bhunia, Barry T. Rouse, Peter James Obrien. - p. 17-18
További szerzők:Oláh János (1976-) (állattenyésztés) Szabó Csaba (1968-) (agrármérnök)
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2.

001-es BibID:BIBFORM118839
035-os BibID:(cikkazonosító)4387
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:In ovo feeding of methionine affects antioxidant status and growth-related gene expression of TETRA SL and Hungarian indigenous chicks / James K. Lugata, Sawadi F. Ndunguru, Gebrehaweria K. Reda, Gabriella Gulyás, Renáta Knop, János Oláh, Levente Czeglédi, Csaba Szabó
Dátum:2024
ISSN:2045-2322
Megjegyzések:Methionine (Met) plays a substantial role in poultry due to its involvement in several pathways, including enhancing antioxidant status and improving growth performance and health status. This study examined how in ovo feeding of Met affects hatching performance, antioxidant status, and hepatic gene expression related to growth and immunity in the TETRA-SL LL hybrid (TSL) commercial layer and Hungarian partridge colored hen (HPC) indigenous genotypes. The eggs were injected with saline, DL-Met, and L-Met on 17.5 days of embryonic development. The results showed that the in ovo feeding of DL-Met significantly increased the hatching weight and ferric reducing the ability of the plasma (FRAP) compared with L-Met. The in ovo feeding of either Met source enhanced the liver health and function and hepatic antioxidant status of the chicks. The genotype`s differences were significant; the TSL genotype had better hatching weight, an antioxidant defense system, and downregulated growth-related gene expression than the HPC genotype. In ovo feeding of either Met source enhanced the chicks' health status and antioxidant status, and DL-Met improved the hatching weight of the chicks more than L-Met. Genotype differences were significantly evident in the responses of growth performance, antioxidant status, blood biochemical parameters, and gene expression to Met sources.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Scientific Reports. - 14 : 1 (2024), p. 1-14. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Reda, Gebrehaweria K. Gulyás Gabriella (1985-) (agrár) Knop Renáta (1983-) (állatorvos) Oláh János (1976-) (állattenyésztés) Czeglédi Levente (1977-) (agrármérnök) Szabó Csaba (1968-) (agrármérnök)
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3.

001-es BibID:BIBFORM118530
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:Methionine sources and genotype affect embryonic intestinal development, antioxidants, tight junctions, and growth-related gene expression in chickens / James K. Lugata, Sawadi F. Ndunguru, Gebrehaweria K. Reda, Xenia E. Ozsváth, Eszter Angyal, Levente Czegledi, Gabriella Gulyas, Renata Knop, Janos Oláh, Zoltan Mészár, Rita Varga, Brigitta Csernus, Csaba Szabo
Dátum:2024
ISSN:2405-6545
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
DL-Methionine
L-Methionine
In ovo injection
Intestinal development
Poultry
Megjelenés:Animal Nutrition. - 16 (2024), p. 218-230. -
További szerzők:Ndunguru, Sawadi Fransisco (1980-) Reda, Gebrehaweria K. Ozsváth Xénia Erika Angyal Eszter Czeglédi Levente (1977-) (agrármérnök) Gulyás Gabriella (1985-) (agrár) Knop Renáta (1983-) (állatorvos) Oláh János (1976-) (állattenyésztés) Mészár Zoltán Mihály (1977-) (agrármérnök) Varga Rita Csernus Brigitta (1991-) (élelmiszerbiztonsági és -minőségi mérnök) Szabó Csaba (1968-) (agrármérnök)
Pályázati támogatás:K 139021
Egyéb
Stipendium Hungaricum Scholarship
Egyéb
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4.

001-es BibID:BIBFORM108590
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:Effects of in ovo application of DL and L methionine on the hatchability of tetra-sl and hungarian partridge coloured layers egg / James Kachungwa Lugata, János Oláh, Csaba Szabó
Dátum:2021
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
Megjelenés:Book of Abstracts : 29th Animal Science Days International Symposium. - p. 33.
További szerzők:Oláh János (1976-) (állattenyésztés) Szabó Csaba (1968-) (agrármérnök)
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5.

001-es BibID:BIBFORM108587
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:Influence of in-ovo injection of methionine on the histomorphometric analysis of jejunum in layer genotypes newly hatched chicks / James Kachungwa Lugata, János Oláh, Levente Czeglédi, Zoltán Mészár, Rita Varga, Csaba Szabó
Dátum:2022
ISBN:978-953-8276-36-1
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
Megjelenés:ASD 2022 : Book of Abstracts / Vladimir Brajković, Ivana Držaić, Mario Shihabi, Ino Čurik. - p. 83. -
További szerzők:Oláh János (1976-) (állattenyésztés) Czeglédi Levente (1977-) (agrármérnök) Mészár Zoltán Mihály (1977-) (agrármérnök) Varga Rita Szabó Csaba (1968-) (agrármérnök)
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6.

001-es BibID:BIBFORM106307
035-os BibID:(cikkazonosító)1928 (WoS)000839059400001 (Scopus)85136505221
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:Effects of DL and L-Methionine on Growth Rate, Feather Growth, and Hematological Parameters of Tetra-SL Layers from 1-28 Days of Age / James Kachungwa Lugata, János Oláh, Xénia Erika Ozsváth, Renáta Knop, Eszter Angyal, Csaba Szabó
Dátum:2022
ISSN:2076-2615
Megjegyzések:The study was carried out to determine whether sources or levels of methionine (Met) affect the health status of Tetra-SL (TSL) chicks by examining growth performance, feather growth, and hematological parameters. A total of ninety-six (96) day-old (44.2 +/- 0.18 g lw) TSL chicks were randomly allotted to six treatment groups (three levels for each DL and L-Met source) with four replicates of four chicks each. Chicks were fed ad libitum diets supplemented with 90, 100, and 110% of methionine requirements for four weeks after hatch. The parameters examined are bodyweight (BW), average daily gain (ADG), feather length (FL), and hematological parameters, including: red blood cell (RBC) count, hemoglobin (Hb) concentration in the blood, hematocrit (Ht; %), number of white blood cells (WBC), platelet count, mean corpuscular volume of red blood cells (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), lymphocyte (LYM), mid-range (MID), and granulocyte (GRAN). There was no significant effect of Met sources and levels on BW, ADG, and FL of TSL chicks for the first four weeks of rearing. The RBC, Hb, Ht, WBC, LYM, MID, and GRAN values of TSL chicks were statistically influenced by dietary Met sources and Met levels (p < 0.05). Among the treatment groups, the number of white blood cells (WBC) on 90% DL-Met was the lowest. WBC, RBC, Hb, and Ht were higher from chicks that received 100% DL-Met than all other levels, regardless of the Met sources. The MCV, MCH, and MCHC values were not affected by either Met source or levels or their interactions. Met source and level interactively affected the Ht, WBC, LYM %, and GRAN values of TSL chicks (p < 0.05). The platelet number was affected by Met source only (p < 0.05) with chicks receiving L-Met source having more than twofold higher platelet values than DL-Met source. In conclusion, varying Met levels by +/- 10% of the requirement does not adversely affect the growth performance, feather growth, and hematological parameters of TSL chicks reared for up to four weeks of age. DL-Met increased the body weight and improved the white blood cells, red blood cells, and hematocrit at 28 days after hatch. DL-Met showed similar biological efficacy as L-Met for body weight and feather growth but not for the hematological parameters.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
DL-methionine
L-methionine
blood hematology
Tetra-SL
Megjelenés:Animals. - 12 : 15 (2022), p. 1-11. -
További szerzők:Oláh János (1976-) (állattenyésztés) Ozsváth Xénia Erika Knop Renáta (1983-) (állatorvos) Angyal Eszter Szabó Csaba (1968-) (agrármérnök)
Pályázati támogatás:EFOP-3.6.3-VEKOP-16-2017-00008
EFOP-VEKOP
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7.

001-es BibID:BIBFORM106312
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:Effect of genotype on the hematological parameter of TETRA-SL and Hungarian Partridge coloured chickens at young age / James Kachungwa Lugata, Xénia Erika Ozsváth, Sawadi Fransisco Ndunguru, Gebrehewaria Reda Kidane, Renáta Knop, Eszter Angyal, János Oláh, Csaba Szabó
Dátum:2022
ISSN:1587-1282
Megjegyzések:Indigenous chickens are well known for their dual-purpose function and palatable meat. However, the information on their hematology parameters is lacking and hence hampering the poultry industry production of local breeds. The main objective of this study was to examine the hematological parameters of Hungarian Partridge Coloured hen (HPC) and TETRA-SL (TSL) genotype and determine the hematological reference interval values. This trial was part of the larger experiment where a total of 200 chicks (HPC + TSL) were reared. For this trial the blood samples were obtained from brachial wing veins of 8 chicks of each genotype for blood hematological analysis. The results indicated that some of the hematological parameters such as red blood cells-RBC, white blood cells-WBC, hemoglobin-Hb, hematocrit-Ht, platelets-Plt, lymphocytes-LYM, and granulocytes-GRAN were significantly affected by the genotypes (p < 0.05). The genotype did not affect the mean corpuscular volume-MCV, mean corpuscular hemoglobin-MCH, mean corpuscular hemoglobin concentration-MCHC, and GRAN (p > 0.05). The hematological reference interval values were slightly higher in the TSL genotype compared to HPC chicks. It is concluded that genotype has a significant effect on the hematological parameters. The results from this trial will be help and design the baseline reference values for the HPC genotype which will be useful in assessing the health status of these indigenous chickens.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
Hungarian Partridge coloured hen
Hematology parameter
TETRA-SL
Genotype
Megjelenés:Agrártudományi közlemények = Acta agraria Debreceniensis. - 2022 : 1 (2022), p. 99-104. -
További szerzők:Ozsváth Xénia Erika Ndunguru, Sawadi Fransisco (1980-) Kidane, Gebrehewaria Reda Knop Renáta (1983-) (állatorvos) Angyal Eszter Oláh János (1976-) (állattenyésztés) Szabó Csaba (1968-) (agrármérnök)
Pályázati támogatás:EFOP-362-16-2017-00001
EFOP
EFOP-3.6.3-VEKOP-16-2017-00008
EFOP-VEKOP
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8.

001-es BibID:BIBFORM106049
035-os BibID:(WoS)000872017400001 (Scopus)85141886715 (cikkazonosító)1701
Első szerző:Lugata, James Kachungwa (Ph.D hallgató)
Cím:The Role of Methionine Supplementation on Oxidative Stress and Antioxidant Status of Poultry-A Review / James Kachungwa Lugata, Arth David Sol Valmoria Ortega, Csaba Szabó
Dátum:2022
ISSN:2077-0472
Megjegyzések:The physiological status of poultry can be disturbed by different stressors that may lead to oxidative stress conditions. Oxidative stress activates defense systems, which mitigates the adverse effects. Several lines of the poultry defense system exist, including enzyme systems such as catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), and non-enzymatic antioxidants such as Glutathione (GSH). Methionine-a vital amino acid in poultry nutrition-plays a significant role in protein synthesis, transsulfuration, and transmethylation and is also involved in several biochemical pathway activations that can affect the antioxidant system. Therefore, this review aims to summarize the current knowledge on the role of methionine in poultry under heat stress or managing stress, on the antioxidants responsible for scavenging free radicals (GSH) and those responsible for detoxification (SOD, CAT, and GPx). Different levels of methionine supplementation above the requirement (up to 1% Met added on the basal diet) have been tested on the antioxidant status of poultry. It has been shown to improve the antioxidant status and reduce oxidative stress. The results of many experiments on poultry supplemented with diets of different methionine sources indicate that L-Met has good potential to stimulate the antioxidant status of poultry.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
poultry
antioxidant defense system
methionine sources
oxidative stress
Megjelenés:Agriculture-Basel. - 12 : 10 (2022), p. 1-20. -
További szerzők:Ortega, Arth David Sol Valmoria (1992-) (PhD student) Szabó Csaba (1968-) (agrármérnök)
Pályázati támogatás:EFOP-3.6.3-VEKOP-16-2017-00008
EFOP
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9.

001-es BibID:BIBFORM107693
Első szerző:Ortega, Arth David Sol Valmoria (PhD student)
Cím:Effects of heat stress-induced oxidative stress on the reproduction of sows and its alleviation by dietary antioxidants: a review / Ortega Arth David Sol Valmoria, Xayalath Somsy, Lugata James Kachunhwa, Szabó Csaba
Dátum:2022
Megjegyzések:Sows are susceptible to high ambient temperature, and when it exceeds the level of their thermal comfort, they experience heat stress (HS). HS causes overproduction and accumulation of reactive oxygen species (ROS) in cells and can disturb the animals' antioxidant defense system, leading to oxidative stress (OS). Such stressor causes oxidative damage to proteins, lipids, polysaccharides, and DNA in cells and tissue damage. HS-induced OS also harms the sows' reproductive development. It can negatively affect the physiological process of the animals' reproduction from the maturation of oocytes to fertilization, development of the embryo, and pregnancy. It even extends to their reproductive performance. Although HS harms female reproduction, information regarding its induced stressor (OS) as the significant contributor to sows' reduced reproductive performance is limited. Therefore, this paper aims to review the effects of HS-induced OS on the reproductive performance of sows, and with due consideration to its nature, this work will also look into the effectiveness of dietary antioxidants against its adverse effects. Based on the literature, sows exposed to HS had increased plasma concentration of OS biomarkers (malondialdehyde, protein carbonyl, and 8-hydroxy-deoxyguanosine) and reduced activity of endogenous antioxidants, signifying OS. This resulted in reduced reproductive performance of sows, including lower litter weight at birth and a higher number of low birth weight piglets (higher variance) which causes high pre-weaning mortality. Moreover, the sows' colostrum, milk yield, and nutrient concentration are reduced upon exposure to the said stressor. Based on the information from various researches, dietary supplementation of antioxidants (vitamin C, E, and minerals Se and Zn) through the diet at various stages of sows' life could ameliorate HS-induced OS. Such amelioration can be supported by several researches which reported improvement in the sows' antioxidant status by increased activity of endogenous antioxidants (SOD, CAT, and GSH-Px) and subsequently improving their reproductive performance. Based on the information gathered, the enhancement of the antioxidant status and improvement of the sows' reproductive performance was exhibited when dietary levels of antioxidants are supplemented at high levels, suggesting the importance of regulating the dietary antioxidant levels in the diet upon HS challenge.
ISBN:978-615-82054-8-1
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
Megjelenés:XXV. Tavaszi Szél Konferencia 2022 : Absztraktkötet / szerk. Molnár Dániel, Molnár Dóra. - p. 72-73. -
További szerzők:Xayalath, Somsy (1982-)(PhD hallgató) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Szabó Csaba (1968-) (agrármérnök)
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10.

001-es BibID:BIBFORM107188
Első szerző:Ortega, Arth David Sol Valmoria (PhD student)
Cím:Effects of heat stress-induced oxidative stress on the reproduction of sows and its alleviation by dietary antioxidants: a review / Arth David Sol Valmoria Ortega, Somsy Xayalath, James Kachungwa Lugata, Csaba Szabó
Dátum:2022
Megjegyzések:Sows are susceptible to high ambient temperature, and when it exceeds the level of their thermal comfort, they experience heat stress (HS). HS causes overproduction and accumulation of reactive oxygen species (ROS) in cells and can disturb the animals' antioxidant defense system, leading to oxidative stress (OS). Such stressor causes oxidative damage to proteins, lipids, polysaccharides, and DNA in cells and tissue damage. HS-induced OS also harms the sows' reproductive development. It can negatively affect the physiological process of the animals' reproduction from the maturation of oocyte to fertilization, development of the embryo, and pregnancy. Their reproductive performance is also compromised; sows exposed to HS can result in lower litter weight at birth, higher number of low birth weight piglets (higher variance) which causes high pre weaning mortality. Moreover, the sows' colostrum, milk yield, and nutrient concentration can be reduced upon exposure to the said stressor, demanding an efficient mitigation strategy. Understanding the sows' reproduction and HS-induced OS influence on its viability is vital in providing proper mitigation strategy. Therefore, this paper aimed to review the female pigs' reproductive development, the impact of HS-induced OS on their reproduction, and the possible alleviation of its adverse effects by dietary antioxidants. Based on the information from various researches, antioxidant fortified diet fed to sows at various stages of life could ameliorate HS-induced OS. Several researches have confirmed this by improving the sows' antioxidant status as supported by increased activity of endogenous antioxidants (SOD, CAT, and GSH-Px) and subsequently improving their reproductive performance. Based on the information gathered, the enhancement of the antioxidant status and improvement of the sows' reproductive performance was exhibited when dietary levels of antioxidants are supplemented at high levels, suggesting the importance of regulating the dietary antioxidant levels in the diet upon HS challenge.
ISBN:978-615-6457-13-4
Tárgyszavak:Agrártudományok Állattenyésztési tudományok előadáskivonat
könyvrészlet
Heat stress
oxidative stress
dietary antioxidants
antioxidant status
sows' reproductive performance
Megjelenés:XXV. Tavaszi Szél Konferencia 2022 : Tanulmánykötet I. / szerk. Molnár Dániel, Molnár Dóra, Nagy Adrián Szilárd. - p. 13-25. -
További szerzők:Xayalath, Somsy (1982-)(PhD hallgató) Lugata, James Kachungwa (1992-) (Ph.D hallgató) Szabó Csaba (1968-) (agrármérnök)
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11.

001-es BibID:BIBFORM110754
035-os BibID:(cikkazonosító)1350 (Scopus)85153711478 (WoS)000978446300001
Első szerző:Szabó Csaba (agrármérnök)
Cím:Gut health and influencing factors in pigs / Csaba Szabó, James Kachungwa Lugata, Arth David Sol Valmoria Ortega
Dátum:2023
ISSN:2076-2615
Megjegyzések:The gastrointestinal tract (GIT) is a complex, dynamic, and critical part of the body, which plays an important role in the digestion and absorption of ingested nutrients and excreting waste products of digestion. In addition, GIT also plays a vital role in preventing the entry of harmful substances and potential pathogens into the bloodstream. The gastrointestinal tract hosts a significant number of microbes, which throughout their metabolites, directly interact with the hosts. In modern intensive animal farming, many factors can disrupt GIT functions. As dietary nutrients and biologically active substances play important roles in maintaining homeostasis and eubiosis in the GIT, this review aims to summarize the current status of our knowledge on the most important areas.
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
pig
gastrointestinal tract
feed additives
Megjelenés:Animals. - 13 : 8 (2023), p. 1-28. -
További szerzők:Lugata, James Kachungwa (1992-) (Ph.D hallgató) Ortega, Arth David Sol Valmoria (1992-) (PhD student)
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